Double hook for a wall



FIG. 1 is a front, top and right side perspective view of a double hook for a wall showing my new design;

FIGS. 2 and 3 are respectively front and rear elevational views thereof;

FIG. 4 is a right side elevational view thereof, the side opposite being a mirror image; and

FIGS. 5 and 6 are respectively bottom and top plan views thereof. 

The ornamental design for a double hook for a wall, as shown and described. 